Releasing a film about a founding father of the United States during the country’s 250th birthday year is such a slam-dunk idea that it’s a wonder there haven’t been several already. Somehow, “Young Washington,” the latest release from faith-friendly, red state-targeted Angel Studios, has the field all to itself. Luckily, it’s good—not a knockout by any means, but a modern example of the sort of movie that used to be a permanent asset in Hollywood’s studio portfolio: a well-crafted but accessible biopic about the maturation of a person who helped shape the nation’s image of itself. Jon Erwin’s drama is...